An Open-Source JavaScript Library for Mobile-Friendly Interactive Maps

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2
votes
4answers
117 views

Sites that demo freely available Basemaps

I've seen such sites in the past. I remember seeing one put together by Wm Lerer at a conference a couple years ago. What I'm looking for is a map that demonstrates all (well, at least a lot) of the ...
2
votes
2answers
104 views

How to generate legend in leaflet webmap?

Although I have checked the "Create Legend" option in the qgis2leaf plugin, it did not generate any legend in the output webmap. What am I missing here ?
2
votes
3answers
462 views

geoserver heatmap tiles doesn't display well (with leaflet)

I am trying to display a heatmap generated with geoserver on my map using the L.tileLayer.WMS class from Leaflet, but the tiles do not fit well together. Do you have any idea how to fix it?
2
votes
1answer
2k views

Disable leaflet interaction temporary

How can I temporary disable zoming/draging the Mapview in Leaflet.js Tried so many ways but without any luck. It's important to make it temporary and I also need the option to enable again.
2
votes
1answer
773 views

GeoServer Callback Function Undefinded

Any idea why the function loadThis() comes back as undefined? I've tried adding jsonp: false which doesn't help either. The json object is returned properly, I can view it in FireBug, but I can't get ...
2
votes
2answers
3k views

How to label GeoJSON polygons?

I'm using Leaflet combined with GeoJSON features. Is there a way to label GeoJSON features (in this case - polygons)? It should get labels from feature.properties.name This is my code where I ...
2
votes
1answer
1k views

Leaflet, wrong API key when using CloudMade tiles!

I've registered on CloudMade and got some API keys but non of them work with Leaflet API. When I checked for image URLs and opened each directly using my browser it prints out the message "Wrong ...
2
votes
1answer
2k views

How to change icons for Leaflet markers when using cluster plugin?

I'm using Leaflet MarkerCluster. I created a MarkerClusterGroup as markers1 as you can see. There's about a hundred points I have written like var addressPoints in this format: var addressPoints = ...
2
votes
2answers
414 views

How to pull lat/lng from a map canvas and update a database

So if i want to pull out lat/lngs after user clicks on a map canvas (lat/lngs are pulled using any javascript API (leaflet, wax etc.) and add this to a postgresql database using a query, how do i do ...
2
votes
2answers
137 views

Flannery compensation in Leaflet JS

I'm creating a bubble map using Leaflet JS. Everything is working smoothly (LeafletJS is awesome!) but now I'd like to try flannery compensation on the bubbles. I can't find the math anywhere though. ...
2
votes
2answers
502 views

Leaflet.geojson webpage performance out of hand, how to convert to .png?

I exported some countries as a single .geojson file. The file includes every country's vertices and coordinates, as that's what a .geojson is ─ a vector file. Thing is, there are about 20 countries ...
2
votes
1answer
4k views

Combine Leaflet with Geoserver WMS map

I'm not very skilled within the GIS world, however, I would like to know if it's possible to use this map: ...
2
votes
1answer
213 views

How to efficiently render and enable user interaction on thousands of points with Leaflet?

I've got a large dataset comprised of about 10k points representing gas stations. Some of these gas stations sell diesel fuel, others do not. In my web map, I want to let the user switch between ...
2
votes
3answers
1k views

gdal2tiles.py generates wrong tiles / MapTiler the right ones

I'm trying to generate tiles with gdal2tiles.py and the resulting tiles are stored as 18/132639/164219. If I do the same thing with MapTiler (the GUI variant of gdal2tiles) the tile result is ...
2
votes
2answers
2k views

leaflet and geojson tiles

New to mapping. Trying to create a heat map with data that updates every hour for US Counties with leaflet.js similar to http://leaflet.cloudmade.com/examples/choropleth-example.html. But, adding ...
2
votes
1answer
128 views

GeoJSON, circlemarkers using the Leaflet OverlappingMarkerSpiderfier plugin

I am wondering if I can use the Leaflet OverlappingMarkerSpiderfier plugin with my circlemarkers. I've loaded a GeoJSON file and added circlemarkers using; var gj = L.geoJson(route, { ...
2
votes
1answer
103 views

Using OSM Buildings in Leaflet: how to deactivate layer on loading map

I'm trying to use OSMBuildings in my Leaflet map. <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>OSM Buildings Test</title> <link ...
2
votes
1answer
67 views

Display a link in a popup with Leaflet

Hey there! Im working with the Leaflet javascript library. There should be an option to click on my map and view a popup. I already have a code for that: var popup = L.popup(); function ...
2
votes
1answer
63 views

When I publish a layer(shapefile or postgis) with TileMill, 200 meters moves

I hope someone can help me. Not if you know the TileMill application I'm working with her to publish layers look more beautiful. Well, first I have posted directly loading the shp file., But when ...
2
votes
2answers
171 views

Sending map extent in (geo)JSON

I have a leaflet map that I need to fitBound on a given rectangle. The coordinate for the fit bound will be transfered in JSON via a REST call on a server. We are using GEOJson to encode our geometry ...
2
votes
1answer
277 views

Display a control (zoom bar) outside map container in Leaflet?

I need to extend a zoom control so that it is functional outside of the leaflet map container. Can this be done? Essentially,the same idea as what is accomplished with this item here but under the ...
2
votes
1answer
525 views

How can I load stricly tiles within the current viewport in Leaflet.js?

I have tiles that are not available for the whole map. How can I stop Leaflet.js/Mapbox.js from making requests to these tiles? There are dozens of 404's that I'd really like to get rid of. Thank ...
2
votes
1answer
641 views

Leaftlet and ArcGIS Server REST

I am fairly new to all of this and am looking for some guidance. Any information is appreciated! I am trying to use leaftlet to display shapefiles from an ArcGIS Server using the REST URL. I have ...
2
votes
3answers
3k views

Getting WFS data from Geoserver into leaflet

I'm trying to use a ajax call to load WFS data from geoserver into a GeoJson layer in leaflet. When I do the following message in the console: XMLHttpRequest cannot load ...
2
votes
1answer
325 views

How can I make a leaflet control open by default?

I'm using leaflet to display a map. I have a control section that I'd like to be open by default, but I can't find a way to do it through the API. Is there a way to do this?
2
votes
1answer
1k views

leaflet show miles/kilometers

Googlemaps shows you how large an area is on a map by showing a small bar with the number of miles/kilometers at the bottem left. Does leaflet also support this somehow? I do not see it listed in ...
2
votes
1answer
1k views

How do I project my WMS tilelayer in leaflet if I want it to display as an overlay on my basemap if they have different EPSG?

So my basemap is a world Mercator projection and in wfs format and I'm trying to put a WMS overlay in a different projection over it? Leaflet's API didn't give me much info on changing the epsg so is ...
2
votes
1answer
168 views

Is it necessary to add Tile layer background?

Is it necessary to add tile layer for making a GeoJSON data rendered in web browser using Leaflet or any other API ? I have a geoJSON data (I obtained the GeoJSON data by converting .shp file to ...
2
votes
2answers
2k views

Animated lines and line styles in Javascript

I'm using Leaflet library and Mapbox. I need to create animated line from one city to another, slow motion "travelling" from one point to another point. Is that possible in javascript and how? I can ...
2
votes
1answer
36 views

How do you get the nodes of an area in Overpass API in the “right” order?

I use the Overpass API to get the boundary of an OSM relation. I then use the result to display the boundary on a leaflet map. My problem is however, that the nodes are not in the "right order". ...
2
votes
2answers
47 views

Search and zoom json features in Leaflet

How can I add search box to map that allows user to search>zoom to polygon name. If there are 100 polygons, user can type name of polygon (i.e., Symantec) then map zooms to matching county?
2
votes
1answer
51 views

How to get a table from a leaflet map?

I have a map Here based on leaflet JS and the layers are geojson. I would like to get a table at on another div when I click on each layers. How would I be able to do that? Thanks
2
votes
1answer
72 views

Leaflet: How do you use removeLayer?

This is driving me mad. See the Leaflet tutorial for adding a layer control to your map: L.Icon.Default.imagePath = "Scripts/images"; var mapUrl = ...
2
votes
1answer
44 views

Distort image to display on leaflet.js based on known 16x16 point grid

I have an image that is a satellite picture, and with php gd I want to distort it so I can overlay it on a leaflet.js map. To make it a bit more simple, I have a grid of points, 16x16 which bind the ...
2
votes
1answer
184 views

Viewing map tiles generated from Maperitive in leaflet or openlayers

for few days i have been working on developing my own osm tile server. I tried it on linux as well as on windows, no complete success till now. I Have to make tile server on both windows and linux. ...
2
votes
1answer
169 views

Leaflet snap circle draw to marker

I am looking for ideas/libraries that enable snapping when I create a circle with leaflet draw. There is the libaray Leaflet snap, that enables snapping of draggable markers to polylines and other ...
2
votes
1answer
181 views

Cache geodjango query with bounding box filter

Im using geodjango (postgis) to retrieve points contained inside a bounding box (made by leafletjs), it works so nice, but now I want to cache this query. A tipical query is one like this: ...
2
votes
2answers
234 views

where to host private cartodb/leaflet web app

I am looking for opinions on where to host my cartodb/leaflet map site. It needs to be private with authorized users and have a document management system. So, I was thinking sharepoint online 2013 so ...
2
votes
1answer
264 views

SVG control not visible on top of Leaflet.js

I'm using Leaflet 0.7.1 and want to draw a radial menu (like openstreetmap's iD editor) on top using d3. Some examples I found use Leaflet's overlayPane to append the svg element to: var ...
2
votes
1answer
366 views

Options for getting data from SQL Server into Leaflet app?

I have polygon data in SQL Server 2012 that I need to get onto a Leaflet application - we're not talking thousands of polygons, but simplified U.S. counties where only one state will be displayed at a ...
2
votes
1answer
397 views

Programmatic conversion between GML and GeoJSON

I am modifying a .Net (C#, MSSQL) system to add some geography that I'd like to display on a leaflet map. I had originally expected to save GeoJSON directly into text strings in the DB, but after ...
2
votes
2answers
345 views

Can Geoserver return the raster value of a lat/lon point

I have a GeoTIFF published by Geoserver 2.2 and being used by Leaflet via WMS. How can I get Geoserver to return the raster value at a lat/long point? I'm guessing it has to do with using WCS, but ...
2
votes
1answer
2k views

Leaflet - how can I call custom js after drawing polygon?

I want to draw a polygon on a leaflet map and afterwards send it to the DB and retrieve all objects that intersect that polygon. In Openlayers I did it by using custom function in "featureAdded:" ...
2
votes
2answers
345 views

How to visualize pgRouting layer in leaflet?

I have completed all the queries of the of pgRouting tutorial by Underdark where visualization was done with the help of RT SQL Layer Plugin. As I am using Windows OS I have no access of that tool. ...
2
votes
1answer
596 views

formatting geojson from postgis data using node.js

I am trying to build a GeoJSON object from a SQL query to some GIS point data in a postgis postgresql database. A snippet of my node.js app.js is below. As it stands I understand building the type ...
2
votes
1answer
1k views

How to setup leaflet map to display a WMS layer in ESRI:102012 projection?

I have a WMS server that serves layers in ESRI:102012 projection. http://spatialreference.org/ref/esri/102012/ It accepts GetMap requests with srs=EPSG:102012 parameter. My goal is to display a map ...
2
votes
1answer
909 views

LEAFLET - store and retrieve user markers & diagrams from database

I am intending to use leaflet in order to build a "microscope laboratory" for my institute's medical school. I am quite new to javascript, ajax and json technologies so I would like to have some ...
2
votes
1answer
32 views

How to display UtfGrid info

first off sorry if this question have been asked, I have been looking for an answer for some time now but cant find any solution. I have created a .mbtiles file with Tilemill, extracted the .png and ...
2
votes
1answer
69 views

Saving Leaflet Maps in Database

I have a webpage with a Leaflet Map, I can add markers,filter markers and so on. My question is that how can I save it? Load the Map Add some Markers on the Map (Optional) Filter the Markers on ...
2
votes
1answer
121 views

leaflet marker-cluster JSONP geoserver

I hope I can get same help from here. I started to put together a leaflet map, please see here: http://gis.xyz/leaflet2.html I want to show my postgis point (uk based) features on this map with ...